APA (7th ed.) Zitazioa
Ryan, J. D., Ray, R. J., & Hiduke, G. P. (1999). Small business: An entrepreneur's plan (5th ed.). Dryden Press.
Chicago Style (17th ed.) Zitazioa
Ryan, J. D., Robert J. Ray, eta Gail P. Hiduke. Small Business: An Entrepreneur's Plan. 5th ed. Fort Worth: Dryden Press, 1999.
MLA (9th ed.) Zitazioa
Ryan, J. D., et al. Small Business: An Entrepreneur's Plan. 5th ed. Dryden Press, 1999.
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